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Published on: April 17, 2020
Short-term outcomes of parastomal hernia prophylaxis with Stapled Mesh stomA Reinforcement Technique (SMART) in
Michelle Zhiyun Chen1, Andrew Gilmore1,2,3,4
1Department of Colorectal Surgery, Macquarie University, Sydney, New South Wales, Australia.
Background:
Parastomal hernias occur in 50-80% after stoma formation. Even with mesh repairs, recurrence can be as high as 33%. Stapled Mesh stomA Reinforcement Technique (SMART) places a prophylactic onlay mesh in the trephine during permanent stoma formation to prevent parastomal hernia. Our study aims to describe the short-term outcomes of SMART procedures.
Methods:
A prospective study of patients receiving the SMART procedure from 2015 to 2020 was conducted.
Inclusion Criteria:
non-Crohn's colorectal and urological surgery with permanent stoma formation. The SMART surgical technique incorporates a 70-mm circular piece of polypropylene mesh by stapling it to the muscular abdominal wall using a circular stapler, and attaching the edge of the mesh to the deep fascia.
Results:
Fifty patients had a total of 53 SMART procedures. Median follow-up was 27 months. Procedures included: 35 end colostomies, five end ileostomies, eight ileal urinary conduits and five double-barrelled wet colostomies. Four patients had parastomal hernia during follow-up. One was acute, on day 1, due to very large size of trephine, one in a double-barrelled wet stoma that was repaired laparoscopically, one had a stomal prolapse requiring revision at 3 years and one patient had early small bowel obstruction due to very small size of trephine requiring another surgery. There were no wound infections or mesh-related sepsis.
Conclusion:
Symptomatic parastomal herniation occurred in 8% of the study population, and most complications were due to incorrect choice of stapled trephine diameter. Longer term follow-up is required to assess for problematic parastomal hernia.
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